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adafruit / Adafruit_Blinka

Add CircuitPython hardware API and libraries to MicroPython & CPython devices
https://learn.adafruit.com/circuitpython-on-raspberrypi-linux
MIT License
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RuntimeError: ws2811_init failed with code -2 (Out of memory) #269

Closed zethdubois closed 4 years ago

zethdubois commented 4 years ago

I'm driving a Neopixel strip successfully with a Raspi 1B (512MB RAM) Raspbian Stretch without GUI using the python control scripts.

Things work fine but long uptime the Pi (between a few hours and a few days) it fails In the log files I find this: RuntimeError: ws2811_init failed with code -2 (Out of memory)

I'm using a 5 minute cycle crontab script job to turn the lights on and off, so over the course of a day the strip is directly manipulated 400+ times.

On another board someone asked if I am calling ws2811_fini at then end of the script, which look like a thing to do, but there's no call to initialize it, or any reference in the libraries to it at all.

Can anyone assiste?

tannewt commented 4 years ago

Moving this to the Blinka repo. This isn't a problem with the NeoPixel library, it is a problem with the underlying neopixel_write.

ladyada commented 4 years ago

the underlying ws28xx may have a memory leak...you should try to avoid creating new neopixel objects or running the script repeatedly. e.g. try running the script once and sending it signals based on behavior you want!

makermelissa commented 4 years ago

Looks like you found the underlying issue at https://github.com/jgarff/rpi_ws281x/issues/390 as I see you posted there. Closing here.